U.S. patent application number 12/000085 was filed with the patent office on 2011-06-30 for contact pin structure.
This patent application is currently assigned to Iwei Technology Co., Ltd.. Invention is credited to I-Chang Chang.
Application Number | 20110159712 12/000085 |
Document ID | / |
Family ID | 49684330 |
Filed Date | 2011-06-30 |
United States Patent
Application |
20110159712 |
Kind Code |
A1 |
Chang; I-Chang |
June 30, 2011 |
Contact pin structure
Abstract
The present invention relates to a structural improvement for a
contact pin, in which a contact pin is provided with a main body,
from one end of which extends a connecting portion, and a contact
portion extends from the other end. The contact portion is provided
with tapered sections which form a terminal. Accordingly, when
using the contact pin, combination of the tapered sections and the
terminal of the contact portion enables accommodating electrical
portions of different types of batteries and forming a
corresponding electrical contact therewith, thereby achieving
practical advancement enabling universal use of the single contact
pin to accommodate many kinds of specifications.
Inventors: |
Chang; I-Chang; (Sijhih
City, TW) |
Assignee: |
Iwei Technology Co., Ltd.
|
Family ID: |
49684330 |
Appl. No.: |
12/000085 |
Filed: |
December 7, 2007 |
Current U.S.
Class: |
439/78 |
Current CPC
Class: |
H01R 12/55 20130101;
H01R 13/2442 20130101; H01R 27/00 20130101; H01R 13/35 20130101;
H01R 13/2464 20130101; H01R 13/2428 20130101; H01R 13/08
20130101 |
Class at
Publication: |
439/78 |
International
Class: |
H01R 13/02 20060101
H01R013/02 |
Claims
1. A contact pin structure, comprising a main body, a bent
connecting portion extends from one end of the main body, and the
connecting portion electrically connects to a predetermined circuit
board; wherein: a contact portion extends from another end of the
main body, and the contact portion is provided with a terminal
formed from tapered sections.
2. The contact pin structure according to claim 1, wherein the main
body is either columnar, tubular, lamellar or tabular shaped.
3. The contact pin structure according to claim 1, wherein the
connecting portion either extends parallel to, perpendicular to or
extends to form an angular difference with the main body.
4. The contact pin structure according to claim 1, wherein the
contact portion either extends parallel to, perpendicular to or
extends to form an angular difference with the main body.
5. The contact pin structure according to claim 1, wherein the
connecting portion either assumes a height difference,
horizontality, perpendicularity or forms an angular difference with
the contact portion.
6. The contact pin structure according to claim 1, wherein the
contact portion is either of lamellar form or tabular form.
7. The contact pin structure according to claim 1, wherein the
contact portion is either of tapered form, triangular shaped,
diamond shaped, kite shaped or polygon shaped.
8. The contact pin structure according to claim 1, wherein the main
body is further configured with an elastic section.
9. The contact pin structure according to claim 8, wherein the
elastic section is either a continuous bent form, a wave form or a
continuous winding form.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention provides a contact pin, and more
particular provides a structural improvement for a contact pin to
enable accommodating electrical portions of different types of
batteries and form electrical contact with the contact pin.
[0003] (b) Description of the Prior Art
[0004] Regardless of the portable electronic product, including
digital cameras, mobile phones, notebook computers, hand-held
amusement games, and the like, batteries are contained inside all
such portable electronic products, and the required electric power
is supplied via the batteries when the portable electronic product
is running.
[0005] Technological progress and respect for environmental
consciousness has brought about the development in battery
technology. The early carbon-zinc dry cell batteries have given way
to nickel cadmium batteries, nickel hydrogen batteries, lithium
sulfur batteries or lithium batteries as the electric power source.
Apart from being of small size and light, the new types of
batteries are provided with the characteristic of being
rechargeable during use. Hence, many portable electronic products
have placed within them either nickel cadmium batteries, nickel
hydrogen batteries, lithium sulfur batteries or lithium batteries
complying with their respective specifications, and are used as the
electric power source thereof.
[0006] When the electric power of the nickel cadmium batteries,
nickel hydrogen batteries, lithium sulfur batteries or lithium
batteries is exhausted, the batteries can be taken out of the
electronic product and recharged using an external recharging
device, generally known as a battery charger. A recess of the
battery charger is configured as a holding recess, within which is
configured contact pins, thereby enabling electrical contact with
electrical portions of a battery by means of the contact pins,
after which the battery charger transmits external electric power
to within the battery, and thus enable the battery to be fully
recharged with electric power.
[0007] Referring to FIG. 1, which shows a combination schematic
view 1 of a battery charger and a battery, and from the drawing it
can be clearly seen that a battery charger A is configured with a
holding recess A0, an inner wall of which is configured with a
plurality of contact pins C. After a battery B is disposed within
the holding recess A0, then each electrical portion D of the
battery B forms an electrical contact with the respective contact
pin C, thereby enabling the battery charger A to transmit external
electric power, such as the mains power supply, to within the
battery B. Furthermore, it can be seen from the drawing that the
electrical portions D of the battery B are configured to be
tabular, therefore shape of the contact pins C of the battery
charger A are configured as protruding arcs or 90 degree turned
V-shaped forms in order to match the tabular electrical portions
D.
[0008] Referring to FIG. 2, which shows a combination schematic
view 2 of a battery charger and a battery, and from the drawing it
can be clearly seen that electrical portions D1 of a battery B1 are
configured as tubular hollow cavities, therefore shape of contact
pins C1 of a battery charger A1 are configured as columnar forms in
order to match the tubular cavity shaped electrical portions D1.
When the battery B1 is disposed within a holding recess A10 for
charging thereof, then the contact pins C1 are made to respectively
penetrate within the electrical portions D1 to form electrical
contacts therewith.
[0009] Referring to FIG. 3, which shows a combination schematic
view 3 of a battery charger and a battery, and from the drawing it
can be clearly seen that electrical portions D2 of a battery B2 are
configured as juxtaposed cavities, therefore shape of contact pins
C2 of a battery charger A2 are configured as juxtaposed tabular
strips in order to match the juxtaposed cavity shaped electrical
portions D2. When the battery B2 is disposed within a holding
recess A20 for charging thereof, then the contact pins C2 are made
to respectively penetrate within the electrical portions D2 to form
electrical contacts therewith.
[0010] Accordingly, from the above it can be known that different
types of the battery B are used in different types of electronic
devices, which results in the need for different types of the
electrical portions D. Hence, manufacturers of the battery charger
A must design different types of the contact pins C to enable the
battery charger A to accommodate and charge the different batteries
B. Hence, it is the strong desire of the inventor and manufacturers
engaged in related art and purpose of the present invention to
resolve and surmount existent technical difficulties to solve the
aforementioned problems and shortcomings of the inability for
universal use of the battery charger A resulting from the numerous
specifications of the prior art contact pins.
SUMMARY OF THE INVENTION
[0011] A primary objective of the present invention is to provide a
contact pin, one end of a main body of which extends a bent contact
portion; the contact portion is tabular, two sides of which are
respectively provided with a tapered section, and the junction of
the tapered sections forms a terminal. Use of the aforementioned
technology provides a breakthrough in overcoming existing problems
of the inability for universal use of a battery charger resulting
from the numerous specifications of the prior art contact pins, and
achieves practical advancement in enabling the contact pins to
accommodate electrical portions of different types of batteries and
form electrical contacts therewith.
[0012] A second objective of the present invention is to provide
one end of the main body of the contact pin with a connecting
portion, and provide the other end with the contact portion,
wherein the contact portion either assumes horizontality,
perpendicularity or forms an angular difference height position
with the connecting portion. Use of the aforementioned technology
enables the contact portion to produce an elastic restoring
displacement, which is able to produce tight elastic support, and
achieves practical advancement not conceived of in the prior art
contact pins.
[0013] To enable a further understanding of said objectives and the
technological methods of the invention herein, a brief description
of the drawings is provided below followed by a detailed
description of the preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 shows a combination schematic view 1 of a battery
charger of the prior art and a battery.
[0015] FIG. 2 shows a combination schematic view 2 of a battery
charger of the prior art and a battery.
[0016] FIG. 3 shows a combination schematic view 3 of a battery
charger of the prior art and a battery.
[0017] FIG. 4 shows an external elevational view of the present
invention.
[0018] FIG. 5 shows a schematic view depicting movement of the
present invention.
[0019] FIG. 6 shows a schematic view depicting a use mode of the
present invention.
[0020] FIG. 7 shows a cutaway view 1 depicting a use mode of the
present invention.
[0021] FIG. 8 shows a cutaway view 2 depicting a use mode of the
present invention.
[0022] FIG. 9 shows a cutaway view 3 depicting a use mode of the
present invention.
[0023] FIG. 10 shows an external elevational view 1 of a further
embodiment according to the present invention.
[0024] FIG. 11 shows an external elevational view 2 of a further
embodiment according to the present invention.
[0025] FIG. 12 shows external elevational views 3 of further
embodiments according to the present invention.
[0026] FIG. 13 shows an external elevational view of a further
embodiment according to the present invention.
[0027] FIG. 14 shows a schematic view depicting movement of the
further embodiment according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0028] Referring to FIGS. 4, 5, which show a contact pin E provided
with a main body E1, from one end of which extends a bent
connecting portion E11. The connecting portion E11 is able to
electrically connect to a predetermined circuit board by means of
welding, heat sealing or plugging in methods.
[0029] A bent contact portion E2 extends from another end of the
main body E1, and the contact portion E2 is tabular and provided
with tapered sections E21, from which extends a terminal E22.
[0030] After the connecting portion E11 of the contact pin E is
connected to the predetermined circuit board, because a horizontal
height difference forms between the connecting portion E11 and the
contact portion E2, thus, when pressure is applied on the contact
portion E2 from an external force, such as the electrical portion
of a battery, then a displacement is produced about the connecting
portion E11 and the bent portion of the main body E1 serving as an
axle center and the main body E1 serving as a shaft lever, thereby
causing elastic displacement of the main body E1. Moreover, because
the main body E1 is made from metal material, and thus provided
with elasticity, under the aforementioned situation, elasticity of
compression is produced when the main body E1 and the bent portion
of the connecting portion E11 are subjected to an external
force.
[0031] When the external force exerted on the contact portion E2 is
released, then the original elasticity of compression of the bent
portion of the main body E1 is also released from the connecting
portion E11, thereby causing displacement of the main body E1 which
restores the contact portion E2 to its original position. The
aforementioned means enables producing elastic displacement of the
contact portion E2 of the contact pin E, and when in use, such
elastic displacement is used to support a device connected thereto,
such as the electrical portion of a battery.
[0032] Referring to FIGS. 6, 7, wherein a battery charger A is
configured with a plurality of the contact pins E. The contact
portion E2 of each of the contact pins E penetrate an inner wall of
a holding recess A0, thus, when a battery B is placed within the
holding recess A0 of the battery charger A, then electrical
portions D of the battery B respectively form an electrical contact
with the contact pins E, thereby enabling the battery charger A to
transmit external electric power, such as the mains power supply,
to within the battery B. Moreover, it can be seen form the drawings
that the electrical portions D of the battery B are configured to
be tabular, and that each of the contact pins E are provided with
the terminal E22. Accordingly, when the contact portions E2 of the
contact pins E make contact with the electrical portions D, then
the terminals E22 form electrical contact with the electrical
portions D, thereby enabling electric power from the battery
charger A to be transmitted to the electrical portions D through
the terminals E22 of the contact pins E, and then transmitted to
the within the battery B through the electrical portions D. The
majority of batteries as exemplified by the battery B are used in
electronic devices such as digital cameras, mobile phone, and the
like.
[0033] Referring to FIGS. 2 and 8, in which it can be clearly seen
from FIG. 2 that electrical portions D1 of a battery B1 are tubular
hollow cavities, and it can be seen from FIG. 8 that when joining
together the contact pins E of the present invention with the
battery B1 of FIG. 2, when each of the contact portions E2 of the
contact pins E provided with the tapered sections E21 and the
terminal E22 make contact with the respective electrical portion
D1, then the terminals E22 first respectively pass into the
interiors of the electrical portions D1 until the tapered sections
E21 respectively make contact with the tubular walls of the
electrical portions D1, after which the contact portions E2
respectively form electrical contacts with the electrical portions
D1. The majority of batteries as exemplified by the battery B1 are
used in electronic devices such as cameras, and the like.
[0034] Referring to FIGS. 3 and 9, in which it can be clearly seen
from FIG. 3 that electrical portions D2 of a battery B2 are
juxtaposed cavities, and it can be seen from FIG. 9 that when
joining together the contact pins E of the present invention with
the electrical portions D2 of the battery B2, when the contact
portions E2 of the contact pins E respectively make contact with
the electrical portions D2, then the tabular form of each of the
contact portions E2 enables complete retention within the
respective electrical portions D2, thereby effecting electrical
connections with the electrical portions D2. The majority of
batteries as exemplified by the battery B2 are used in electronic
devices such as notebook computers, and the like.
[0035] Referring to FIGS. 10, 11, the connecting portion E11 or the
contact portion E2 are configured either to extend parallel to,
perpendicular to or extend to form an angular difference with the
main body E1 of the contact pin E. Moreover, either a horizontal
form, a vertical form or an angular difference can be assumed
between the connecting portion E11 and the contact portion E2.
Accordingly, a height difference is formed between the connecting
portion E11 and the contact portion E2, and after the contact
portion E2 is subjected to an external pressure, then a
displacement is produced about the connecting portion E11 serving
as an axle center and the main body E1 serving as a shaft lever,
thereby causing elastic displacement of the main body E1. When the
external force exerted on the contact portion E2 is released, then
the original elasticity of compression between the connecting
portion E11 and the main body E1 is also released, thereby causing
elastic restoring displacement of the main body E1 which restores
the contact portion E2 to its original position. The aforementioned
means enables producing elastic displacement of the contact portion
E2 of the contact pin E, and when in use, such elastic displacement
is used to support a device connected thereto, such as the use
modes as depicted in FIGS. 6-9.
[0036] Referring to FIG. 12, which shows that the main body E1 of
the contact pin E can be configured either to be columnar, tubular,
lamellar or tabular shaped, and the contact portion E2 can be
configured to be either of tapered form, triangular shaped, diamond
shaped, kite shaped or provided with at least three exterior edges
to accommodate devices of different types, such as the use modes as
depicted in FIGS. 6-9.
[0037] Referring to FIGS. 13, 14, which show the contact pin E
provided with the main body E1, one end of which extends the
connecting portion E11, and the contact portion E2 extends from the
other end, wherein the contact portion E2 is tabular shaped and is
provided with tapered sections E21. A terminal E22 extends from the
tapered sections E21.
[0038] In addition, an elastic section E3 is located at an
appropriate position of the main body E1, thus, when the contact
portion E2 is subjected to external pressure, then the elastic
section E3 is caused to deform, thereby producing elasticity of
compression. After the external force on the contact portion E2 is
released, then the elasticity of compression of the elastic section
E3 is also released, thereby causing the contact portion E2 to
return to its original position. Accordingly, the contact pin E is
able to achieve the functional effectiveness as depicted in FIGS.
6-9.
[0039] Hence, referring to all the drawings, advantages of the
present invention are described as follows:
[0040] (1) The contact pin E is provided with the tabular shaped
contact portion E2, and the contact portion E2 is provided with the
two tapered sections E21. Moreover, the terminal E22 extends from
the junction of the tapered sections E21, thereby achieving the
practical advancement of enabling the contact pins E to accommodate
the electrical portions D of different types of the battery B and
effect an electrical contact therewith.
[0041] (2) Bending the main body of E1 of the contact pin E
establishes a height difference between the connecting portion E11
and the contact portion E2, and the main body E1 is used to produce
elastic bending or elastic deformation, thereby enabling the
contact portions E2 to elastically support the electrical portions
D of different types of the battery B and produce good electrical
contact therewith. Moreover, after removing the battery B, the main
body E1 of each of the contact pins elastically restores their
original state.
[0042] It is of course to be understood that the embodiments
described herein are merely illustrative of the principles of the
invention and that a wide variety of modifications thereto may be
effected by persons skilled in the art without departing from the
spirit and scope of the invention as set forth in the following
claims.
* * * * *